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Slow tree


The left tree structure in CMS->Edit does not seem to trigger any event when clicking on a page. On our production server it works ok, but on a less powerful server we sometimes need to refresh the browser to get the page to load. Has anyone experience this? Surfing on the site works perfectly fine, and there is no problem with load times.

Please help!

Mar 21, 2018 12:44

In my experience this usually means that I have some server-side code that is taking waaay too long to execute, even if the live site looks okay. 

What happens when you click blocks or media -- do those load up okay? 

Have you checked your browser console for any JavaScript errors? I would try it in a fresh incognito window just to rule out any corrupt client side assets. 

Apr 12, 2018 15:09

Hi Drew,

thanks for your input! I will definitly check that out. 

Apr 13, 2018 8:49

I do not find any console errors. Strange thing is that sometimes everything loads fast, and sometimes I have to reload the page to be able to navigate.

Apr 13, 2018 9:30

As a troubleshooting step, I would set up a blank page type, add it to a start page, and see if CMS Edit loads slowly. That way you can start to narrow down whether it is a CMS Edit problem or a problem in your code. 

I mean completely blank, like this... 

namespace Example
    using System.Web.Mvc;
    using EPiServer.Core;
    using EPiServer.DataAnnotations;
    using EPiServer.Web.Mvc;

    [ContentType(DisplayName = "Blank Page", GUID = "2874DACE-32D4-43CE-B6F2-399BB76C2204")]
    public class BlankPage : PageData


    public class BlankPageController : PageController<BlankPage>
        public virtual ActionResult Index(BlankPage currentPage)
            return this.View("~/Views/Example/BlankPage/Index.cshtml", currentPage);
@model Example.BlankPage
    Layout = null;

<!DOCTYPE html>

    <meta name="viewport" content="width=device-width" />
        <h1>This is a blank page!</h1>
Apr 13, 2018 16:24

I will add a blank page, and see if that result in a reduced load time as you prepose Drew.

Jul 04, 2018 14:55

Could this perhaps be a cache issue?

Jul 04, 2018 14:56

I created a blank page as suggested, and that page loads perfectly every time. Strange thing is that other pages sometimes loads fast, and sometimes not at all. Then if one page fails, others fail to, until I refresh the browser. Then all pages works again. It's like something puts a lock on everything.

Jul 05, 2018 9:27

Hey Daniel,

Perhaps you can install something like Prefix.io on the server and check out what happens when you click. It might give you ideas on what gets stuck. New Relic is a great tool, too, but prefix.io is free and a bit easier to install.


Jul 08, 2018 15:40
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